244 
fiet adeo per substitutionem 
P=Z2 
l-j. w-fn+etc. , A»w . /u* n ^ mit-mhx -J-nTr-njuArJ etc. 
I / V »V / / / fA”. ** - 
(Sin — ) (Sin — ) . etc. Cos 
2 2 
i_i_wi-in4etc. Aatw «at» wîAAf4- ,,7r -«/><* 4- e tc. 
Q =— 2 T t t ( Sin __) (Sin—) . etc. Sin 
2 ^ 
Ideoque ob formulas (a) at (b) 
A xjn /o , jua^w o «itt - w/Aac + «7T - npx -+- etc. ^ 
r x (Sin — ) (Sin — ) etc. Cos 
J 2 2 
h 2 H- a: 1 
-A h -fj.h 
rrt i - e m \ - e .n 
— . (— ) . etc. 
2/J 2 2 
/ 
cc /c- Xx \ n fC- P X \ n , o- m7t “ ,WA * + n7S - n P x 4- etc * , 
at (Sin — ) (Sin — ) etc Sin . a* 
2 2 2 
h 3 a ; 3 
-AÄ -juA 
TT 1 - £ w* 1 - £ » 
= — - ( ; ) ( — - ) • etc. -f- 
71 
2 
i -t*»i+»-|-etc. 
vel si A mutetur in 2A, /n in 2 [x et sic porro 
/ 
ut 9§ in /k 7* /> 
(SinAAc) (SinuAr) etc. Cos ( fnAA; H »/ua: -f- etc.) dx 
2 2 
h z + V z 
-2AÅ - 2fJth 
271 , 1-7 i - e n 
(___). etc. 
